Tribhuwan University

Institute of Science and Technology

2074

Bachelor Level / First Year / First Semester / Science

B.Sc in Computer Science and Information Technology (CSC114)

(Introduction to Information Technology)

Full Marks: 60

Pass Marks: 24

Time: 3 Hours

Candidates are required to give their answers in their own words as for as practicable.

The figures in the margin indicate full marks.

Section A

Long Answers Questions

Attempt any TWO questions.
[2*10=20]
1.
What is communication protocol? Discuss the OSI model with its layers.[10]
2.
What is the objective of using operating system? How operating system performs process, memory and file management activities?[10]
3.
What is data model? How ER-Model can be used to create conceptual data model? Explain with example.[10]
Section B

Short Answers Questions

Attempt any Eight questions.
[8*5=40]
4.
What is computer system? Discuss components of computer system. [5]
5.
Why bus is used in computer? How control bus differs from data bus? [5]
6.
How many numbers of bits are equivalent 1 Kilobyte? Discuss the working mechanism of magnetic tape. [5]
7.
Mention the use of plotter. How quality of printer is determined? [5]
8.
What do you mean by Internet of Things (IoT)? As an IT expert, mention the possible applications of IoT that you have observed in Nepal. [5]
9.
Define each of the terms confidentiality, integrity, and authentication. [5]
10.
What is multimedia? Discuss the applications of multimedia. [5]
11.
What is BigData? How centralization database is different than the distributed database? [5]
12.
Convert $(10.4)_{10} $ to binary. Add $(10111)_2$ with $(01111)_2$. [5]